org.kalypso.zml.ui.table.dialogs.input.ChooseSteppingDialog.java Source code

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Here is the source code for org.kalypso.zml.ui.table.dialogs.input.ChooseSteppingDialog.java

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/*----------------    FILE HEADER KALYPSO ------------------------------------------
 *
 *  This file is part of kalypso.
 *  Copyright (C) 2004 by:
 * 
 *  Technical University Hamburg-Harburg (TUHH)
 *  Institute of River and coastal engineering
 *  Denickestrae 22
 *  21073 Hamburg, Germany
 *  http://www.tuhh.de/wb
 * 
 *  and
 *  
 *  Bjoernsen Consulting Engineers (BCE)
 *  Maria Trost 3
 *  56070 Koblenz, Germany
 *  http://www.bjoernsen.de
 * 
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 * 
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 * 
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * 
 *  Contact:
 * 
 *  E-Mail:
 *  belger@bjoernsen.de
 *  schlienger@bjoernsen.de
 *  v.doemming@tuhh.de
 *   
 *  ---------------------------------------------------------------------------*/
package org.kalypso.zml.ui.table.dialogs.input;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

import org.apache.commons.lang3.ArrayUtils;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ComboViewer;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.forms.widgets.FormToolkit;
import org.kalypso.core.KalypsoCorePlugin;
import org.kalypso.zml.ui.i18n.Messages;

/**
 * @author Dirk Kuch
 */
public class ChooseSteppingDialog extends TitleAreaDialog {
    protected Integer m_selection;

    private final FormToolkit m_toolkit;

    private final Integer[] m_steppings;

    protected final Date m_current;

    public ChooseSteppingDialog(final Shell parentShell, final ZmlEinzelwert current, final Integer[] steppings,
            final FormToolkit toolkit) {
        super(parentShell);

        m_current = current.getDate();

        m_steppings = steppings;
        m_toolkit = toolkit;
    }

    /**
     * @see org.eclipse.jface.dialogs.TitleAreaDialog#createContents(org.eclipse.swt.widgets.Composite)
     */
    @Override
    protected Control createContents(final Composite parent) {
        final Control control = super.createContents(parent);

        setTitle(Messages.ChooseSteppingDialog_0);
        setMessage(Messages.ChooseSteppingDialog_1);

        return control;
    }

    /**
     * @see org.eclipse.jface.dialogs.TitleAreaDialog#createDialogArea(org.eclipse.swt.widgets.Composite)
     */
    @Override
    protected Control createDialogArea(final Composite parent) {
        final Composite composite = (Composite) super.createDialogArea(parent);
        composite.setLayout(new GridLayout());

        if (ArrayUtils.isEmpty(m_steppings)) {
            m_toolkit.createLabel(composite, Messages.ChooseSteppingDialog_2);
            return composite;
        }

        m_toolkit.createLabel(composite, Messages.ChooseSteppingDialog_3);
        final ComboViewer viewer = new ComboViewer(composite, SWT.BORDER | SWT.READ_ONLY | SWT.SINGLE);
        viewer.getCombo().setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, false));

        viewer.setLabelProvider(new LabelProvider() {
            @Override
            public String getText(final Object element) {
                final Integer step = (Integer) element;

                final Calendar calendar = Calendar.getInstance(KalypsoCorePlugin.getDefault().getTimeZone());
                calendar.setTime(m_current);
                calendar.add(Calendar.HOUR_OF_DAY, step);

                final SimpleDateFormat sdf = new SimpleDateFormat("dd.MM.yyyy HH:mm"); //$NON-NLS-1$

                return String.format(Messages.ChooseSteppingDialog_4, step, sdf.format(calendar.getTime()));
            }
        });
        viewer.setContentProvider(new ArrayContentProvider());
        viewer.setInput(m_steppings);

        viewer.addSelectionChangedListener(new ISelectionChangedListener() {
            @Override
            public void selectionChanged(final SelectionChangedEvent event) {
                final IStructuredSelection selection = (IStructuredSelection) event.getSelection();
                m_selection = (Integer) selection.getFirstElement();
            }
        });

        viewer.setSelection(new StructuredSelection(m_steppings[0]));

        m_toolkit.adapt(composite);

        return composite;
    }

    public Integer getOffset() {
        return m_selection;
    }
}